The book, "Rebel Private Front and Rear" by William Fletcher (Co F, 5th TX) is probably the most accessible first hand account by a Texas Brigade member. PVT Fletcher served with the brigade from its inception to shortly after Chickamauga where he was wounded. I've always had a soft spot in my heart for the TX brigade as the two reenacting Companies I was part of many years ago were Co D, 1st Colorado and Co M, 1st TX. Hope that helps!